jazzy69881 jazzy69881

07-09-2018
Mathematics

contestada

Spencer was 40 inches tall as a 4-year old which placed him in the top 10% of all children of similar age. the mean height for such children is 38 inches. based on this information, what is the standard deviation?

Respuesta :

sqdancefan sqdancefan

13-09-2018

The 90th percentile is 1.2816 standard deviations from the mean. That tells you the standard deviation is ...

... (40 in - 38 in)/(1.2816) ≈ 1.56 in

The standard deviation for height for 4-year olds seems to be 1.56 inches.

Answer Link

Otras preguntas

Your car gets about 20 miles per gallon. You are planning to drive to who live about 850 miles away. How many gallons of gas will you need to purchase to make t

50 POINTS! What form is the equation 2x + 3y = 4 given in? A. Point-Slope Form B. Slope-Intercept Form C. Standard Form D. General Form

Dr. Meyers, an accounting professor, is concerned that he was not engaging his students as much as he would like. He asks his boss, the department chair, and tw

After considering the advantages and disadvantages, explain which option you think is most suitable for the entire band. You must restrict your answer to the ch

Para las celebraciones del barrio de Santiago se junto cierta cantidad de dinero que se distribuirá de la siguiente forma:?

Organic materials (such as food scraps and yard waste) in landfills can decompose and produce landfill gas (LFG) over time. About 50% of LFG is methane, a green

what statement best describes the light-dependent reactions of photosynthesis

How did Edwin Hubble's discovery that the Andromeda Nebula was at least 1 million light years away change scientists' view of the universe?.

1 point Why did James K. Polk link the annexation of Texas with acquiring the Oregon County in his 1844 presidential election campaign?

can someone help me please I didn't understand